COO1220 1A — NGS AJ2778 — Evergreen Park, US

USNGStrigunknown#215132
Latitude
41.720626°
Longitude
-87.697237°
Ellipsoidal h
156.35 m
Ortho h
189.80 m
Verifications
0
Last checked
Never
This triangulation station is part of the National Geodetic Survey's network of monumented control points that form the backbone of geodetic reference infrastructure across the United States. Located near Evergreen Park, Illinois, at coordinates 41.72063° N, 87.69724° W, this trig point provides horizontal and vertical control for surveying, mapping, and engineering projects throughout the region. The ellipsoidal elevation is documented at 156.4 meters above the reference ellipsoid. Triangulation stations of this type were historically established to create a framework of known positions with precisely measured distances and angles between points. Modern surveyors and engineers rely on verification and documentation of such monuments to ensure accuracy in local surveys, construction layout, and geospatial analysis. Maintaining current records of these control points supports continuity in geodetic networks and enables consistent coordinate transformations for ongoing regional work.

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COO1220 1A — NGS AJ2778 — Evergreen Park, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #215132 on SurveyingPedia and sits at an approximate elevation of 189.8 metres. Its coordinates in WGS84 are 41.720626°, -87.697237°, corresponding to 41° 43′ 14.25″ N, 87° 41′ 50.05″ W in the traditional degrees-minutes-seconds format. This page is a self-updating reference — all data is aggregated from public open sources and cross-checked periodically against the originating agency.

Professional surveyors, engineers, and topographers use points like COO1220 1A — NGS AJ2778 — Evergreen Park, US to anchor total-station traverses, verify GNSS/RTK solutions, calibrate levelling instruments, and validate survey deliverables against known coordinates. The record on this page is refreshed daily via automated pipelines that monitor the public sources for any updates, corrections, or status changes.

Coordinate formats

WGS84 (decimal)41.720626, -87.697237
WGS84 (DMS)41° 43′ 14.25″ N, 87° 41′ 50.05″ W
UTM zone (approx.)Zone 16N (approx.)
Elevation189.80 m
Precise conversionOpen in coordinate converter →

Geodetic context in United States

The national geodetic reference in United States is maintained by National Geodetic Survey (NGS). The active datum is NAD83(2011) / NATRF2022 (active). Coordinates shown on this page are expressed in WGS84 (ETRF/ITRF-compatible) which is directly usable in most modern GNSS receivers. For cadastral work in United States you may need to convert to the local datum using the Coordinate Hub.

Browse the full list of indexed control points in United States from the country page.

Nearby benchmarks

The closest 6 indexed control points within roughly 50 km of this location:

US NGS · triangulation station
EVERGREEN PARK CO MARY SPIRE — NGS ME2976
0.4 km away · US
US NGS · triangulation station
COO1220 1B — NGS AJ2779 — Evergreen Park, US
0.8 km away · US
US NGS · triangulation station
CHICAGO RAD STA WGES NEW MAST — NGS ME2977
1.9 km away · US
US NGS · triangulation station
CHICAGO RAD STA WGES NW MAST — NGS ME2953
1.9 km away · US
US NGS · triangulation station
424 — NGS DO9270 — Chicago, US
2.0 km away · US
US NGS · triangulation station
042 — NGS ME2973 — Cook County, US
2.0 km away · US

Frequently asked questions

What is COO1220 1A — NGS AJ2778 — Evergreen Park, US?

COO1220 1A — NGS AJ2778 — Evergreen Park, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #215132 and sits at an elevation of 189.8 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of COO1220 1A — NGS AJ2778 — Evergreen Park, US?

The position of COO1220 1A — NGS AJ2778 — Evergreen Park, US in WGS84 is 41.720626°, -87.697237° (decimal), or 41° 43′ 14.25″ N, 87° 41′ 50.05″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 16N (approx.).

How can I reach and visit this triangulation station?

Use the satellite imagery above to see the surrounding area. You can open this location directly in Google Maps, Google Earth, Bing Maps, or OpenStreetMap using the buttons provided. Many geodetic points are accessible to the public; some are on protected or private land — check local regulations before any field visit. Always bring documentation or your credentials if you plan to use the marker for professional measurement.

Is this point verified and usable for professional surveying?

This record has been community-verified 0 times. Data quality depends on the source: NGS and official national agency points are typically centimetre-accurate, OpenStreetMap survey points are metre-accurate, and GeoNames topographic landmarks (peaks, hills) are reference-grade only. Always cross-reference with the original agency datasheet before using this point for cadastral, legal, or safety-critical work.

Original source: this record was imported from ngs_public. Always refer to the original datasheet for the most up-to-date and authoritative data.